diff --git a/cv9/snake.c b/cv9/snake.c
index e69de29..e5d0345 100644
--- a/cv9/snake.c
+++ b/cv9/snake.c
@@ -0,0 +1,28 @@
+#include "snake.h"
+#include <stdlib.h>
+
+struct snake* add_snake(struct snake* snake, int x, int y) {
+    struct snake* hlava = malloc(sizeof(struct snake));
+    if (hlava == NULL) return NULL;
+    hlava->x = x;
+    hlava->y = y;
+    hlava->next = snake;
+    return hlava;
+}
+
+struct snake* remove_snake(struct snake* snake){
+    return NULL;
+}
+
+void free_snake(struct snake* sn){
+}
+
+int is_snake(struct snake* snake,int x,int y){
+    return 0;
+}
+
+int step_state(struct state* st){
+	int nx = (st->snake->x + st->sx);
+    int ny = (st->snake->y + st->sy);
+    return END_CONTINUE;
+}
\ No newline at end of file